this is a crucial topic among our sports and lives. thanks for opening this thread.
I’ll try to give my contribution (and thoughts), hoping to help somebody and understand something for myself as well.
33yrs old, male, started running just 4-5yrs ago with the crazy approach of switching from half/marathons to ultras in just a few months.
all went good and in 3 years I also got several decent to good results with podium or near podium performances in some discrete races.
in my last year of races I embraced the crazy “too soon too much” approach in terms of diet: constantly under fueling, with daily low calories intake and being way too obsessed with my weight.
(compared to my usual healthy weight) I was like skin and bones.
short term results:
I was flying. at the end, especially in sports which involve elevation gain, its all about gravity: being light helps.
long term results:
injured, unhealthy, and constantly dead tired.
out of the games for almost one year.
advice: DONT DO THIS.
if you really do want to lose weight, do that with the help of a professional.
and please, do that with a conservative approach.
when in doubt, err on eating more than less than you think you need.
my final thought about this.
we are not pro runners and we have loads of other stressors in our lives in addition to training: jobs, families, daily obligations, inconsistent sleep patterns, etc…
adding up another (big) stress on our lives is nonsense.
and if at the beginning you’ll be tempted by all those Strava KOMs and kudos, at the end you’ll regret this stupid decision while being injured on the couch.
being light helps: gravity and physics won’t change.
BUT long term approach always pays out.
if you want to do that, do it wisely.
I think we would all reap much more benefits from focusing on training consistency and quality rather than those stupid digits on the scale.
(sorry for my bad english).